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40 meter four square phased verts.

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by W3PNM, Nov 25, 2019.

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  1. W3PNM

    W3PNM XML Subscriber QRZ Page

    Looking for recommendations on construction articles for building a four square for 40 meters

    W3PNM
     
  2. US7IGN

    US7IGN Ham Member QRZ Page

  3. W3PNM

    W3PNM XML Subscriber QRZ Page

  4. AJ5J

    AJ5J Ham Member QRZ Page

    Oh, man; I envy you already!
     
  5. K1LKP

    K1LKP Platinum Subscriber Platinum Subscriber QRZ Page

  6. K9STH

    K9STH Platinum Subscriber Volunteer Moderator Platinum Subscriber QRZ Page

    A while back, there was an amateur radio operator, who lived about 10-miles north of me, who had 8-each HyGain HyTowers phased for 80-meter and 40-meter operation.

    My pair of 40-meter verticals phased works very well. However, with the 8-verticals phased, I think he could hear an 80-meter crystal dropped, in Outer Mongolia, at high noon local time!

    Glen, K9STH
     
    AJ5J likes this.
  7. AI3V

    AI3V Ham Member QRZ Page

    Let's get back to reality here...

    When you double the size of a array, you can reasonably expect between 2 and 2.5 db of gain.

    Going from one antenna to 4 will give you between 4 and 5 db of gain.

    You may, if the noise happens to be in the direction of a null in your array see somewhat higher improvement in s+n/n

    However, if a deep null for noise rejection is your goal, you will find a small, adjustible loop to be far more usefull as you will be certain to be able to steer the null to the required direction.

    Rege
     
  8. KK4NSF

    KK4NSF Ham Member QRZ Page

    WA4SIX likes this.
  9. UA3TW

    UA3TW Ham Member QRZ Page

    It would be lovely before you build it according to the links from #2, to simulate it with EZNEC+v.6
     
  10. KK4NSF

    KK4NSF Ham Member QRZ Page

    not a bad idea....
     

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